Home / 18,245.24-25,178.07-10,287.47

Finding the Fourth Proportional to 18,245.24, 25,178.07 and 10,287.47

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Solution

The fourth proportional to 18,245.24, 25,178.07 and 10,287.47 is: 14,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.24 : 25,178.07 = 10,287.47 : x
  2. Step 2: Convert to fraction form
    18,245.24/25,178.07 = 10,287.47/x
  3. Step 3: Cross multiply
    18,245.24x = 25,178.07 × 10,287.47
  4. Step 4: Simplify right side
    18,245.24x = 259,018,513.89
  5. Step 5: Solve for x
    x = 259,018,513.89/18,245.24
  6. Step 6: Final answer
    x = 14,196.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.